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Baranowska-Wójcik E, Welc-Stanowska R, Wiącek D, Nawrocka A, Szwajgier D. The interactions of pectin with TiO 2 nanoparticles measured by FT-IR are confirmed in a model of the gastrointestinal tract. Food Res Int 2024; 189:114509. [PMID: 38876586 DOI: 10.1016/j.foodres.2024.114509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 05/02/2024] [Accepted: 05/07/2024] [Indexed: 06/16/2024]
Abstract
The presence of nanoparticle fractions (<100 nm, NPs) in the food additive TiO2 (E171) rises concerns about its potential harmful impact on human health. The knowledge about the interaction of TiO2 NPs with food components is limited to proteins or polyphenols. The present paper is the first to report on interactions between TiO2 NPs and high molecular pectins that form gels in boluses and are remain nearly intact during digestion until they reach the colon. Direct interactions were studied using Fourier Transform Infrared Spectroscopy while indirect ones were monitored by measuring the "absorption" of TiO2 using a 0.2 microfiltration membrane, during in vitro digestion in a model of the gastro-intestinal tract. The FT-IR spectra registered for pectin-TiO2 NPs solutions confirmed changes in band intensities at 1020, 1100, 1610, and 1740 cm-1, suggesting interactions taking place mainly via the COO- groups. Furthermore, the I(1020)/I(1100) ratio was decreased (C-O stretching vibrations), suggesting partial blocking of the skeletal vibrations caused by interactions between pectin and TiO2. The modelled in vitro digestions confirmed that the "availability" of Ti was reduced when TiO2 NPs were combined with pectin, as compared to TiO2 NPs "digested" alone.
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Affiliation(s)
- Ewa Baranowska-Wójcik
- Department of Biotechnology, Microbiology and Human Nutrition, University of Life Sciences, Skromna Street 8, 20-704 Lublin, Poland.
| | - Renata Welc-Stanowska
- Institute of Agrophysics, Polish Academy of Sciences, Doswiadczalna 4, 20-290 Lublin, Poland.
| | - Dariusz Wiącek
- Institute of Agrophysics, Polish Academy of Sciences, Doswiadczalna 4, 20-290 Lublin, Poland.
| | - Agnieszka Nawrocka
- Institute of Agrophysics, Polish Academy of Sciences, Doswiadczalna 4, 20-290 Lublin, Poland.
| | - Dominik Szwajgier
- Department of Biotechnology, Microbiology and Human Nutrition, University of Life Sciences, Skromna Street 8, 20-704 Lublin, Poland.
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2
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Ibrahim FM, El-Liethy MA, Abouzeid R, Youssef AM, Mahdy SZA, El Habbasha ES. Preparation and characterization of pectin/hydroxyethyl cellulose/clay/TiO 2 bionanocomposite films for microbial pathogen removal from contaminated water. Int J Biol Macromol 2024; 274:133511. [PMID: 38944095 DOI: 10.1016/j.ijbiomac.2024.133511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 06/13/2024] [Accepted: 06/26/2024] [Indexed: 07/01/2024]
Abstract
Some of conventional wastewater disinfectants can have a harmful influence on the environment as well as human health. The aim of this investigation was synthesis and characterizes ecofriendly pectin/hydroxyethyl cellulose (HEC)/clay and pectin/HEC/clay incorporated with titanium dioxide nanoparticles (TiO2NPs) and use the prepared bionanocomposite as microbial disinfectants for real wastewater. Pectin/HEC/clay and pectin/HEC/clay/TiO2 bionanocomposite were characterized by various methods including X-ray diffraction (XRD), scanning electron microscope (SEM), and Fourier-transform infrared spectroscopy (FTIR), thermal gravimetric analysis (TGA). Mechanical properties and water vapor permeability (WVP) were carried out. The results of SEM showed that, the prepared bionanocomposite had a smooth surface. Additionally, TiO2 nanoparticles to the pectin/HEC/clay composites may lead to changes in the FTIR spectrum. The intensity of XRD peaks indicated that, TiO2NPs was small size crystallite. TGA illustrated that pectin has moderate thermal stability, while HEC generally exhibits good thermal stability. The TEM showed that, TiO2 nanoparticles have diameters <25 nm. On the other hand, antimicrobial activities of pectin/HEC/clay against Escherichia coli (E. coli), Staphylococcus aureus and Candida albicans have been enhanced by adding TiO2NPs. The minimum inhibitory concentration (MIC) of pectin/HEC/clay/TiO2 against E. coli was 200 mg/mL. Moreover, complete eradication of E. coli, Salmonella and Candida spp. from real wastewater was observed by using pectin/HEC/clay/TiO2 bionanocomposite. Finally, it can be concluded that, the synthesized bionanocomposite is environmentally friendly and considered an excellent disinfectant matter for removal of the microbial pathogens from wastewater to safely reuse.
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Affiliation(s)
- Faten Mohamed Ibrahim
- Medicinal and Aromatic Plants Research Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre, P.O. Box 12622, Cairo, Egypt
| | - Mohamed Azab El-Liethy
- Environmental Microbiology Lab., Water Pollution Research Department, National Research Centre, Dokki, 12622 Giza, Egypt.
| | - Ragab Abouzeid
- Cellulose and Paper Department, National Research Centre, P.O. 12622, Dokki, Giza, Egypt
| | - Ahmed M Youssef
- Packaging Materials Department, National Research Centre, 33 El Bohouth St. (former El Tahrir St.), P.O. 12622, Dokki, Giza, Egypt
| | - Sara Z A Mahdy
- Chemistry Department, Faculty of Science, Benha University, Cairo, Egypt
| | - El Sayed El Habbasha
- Field crops Research Department, National Research Centre, P.O. 12622, Dokki, Giza, Egypt
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3
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Guan X, Wu S, Ouyang S, Ren S, Cui N, Wu X, Xiang D, Chen W, Yu B, Zhao P, Wang B. Remodeling Microenvironment for Implant-Associated Osteomyelitis by Dual Metal Peroxide. Adv Healthc Mater 2024; 13:e2303529. [PMID: 38430010 DOI: 10.1002/adhm.202303529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 01/02/2024] [Indexed: 03/03/2024]
Abstract
Implant-associated osteomyelitis (IAOM) is characterized by bone infection and destruction; current therapy of antibiotic treatment and surgical debridement often results in drug resistance and bone defect. It is challenging to develop an antibiotic-free bactericidal and osteogenic-enhanced strategy for IAOM. Herein, an IAOM-tailored antibacterial and osteoinductive composite of copper (Cu)-strontium (Sr) peroxide nanoparticles (CSp NPs), encapsulated in polyethylene glycol diacrylate (PEGDA) (CSp@PEGDA), is designed. The dual functional CSp NPs display hydrogen peroxide (H2O2) self-supplying and Fenton catalytic Cu2+ ions' release, generating plenty of hydroxyl radical (•OH) in a pH-responsive manner for bacterial killing, while the released Sr2+ promotes the in vitro osteogenicity regarding cell proliferation, alkaline phosphatase activity, extracellular matrix calcification, and osteo-associated genes expression. The integration of Cu2+ and Sr2+ in CSp NPs together with the coated PEGDA hydrogel ensures the stable and sustainable ion release during short- and long-term periods. Benefitted from the injectablity and photo-crosslink ability, CSp@PEGDA is able to thoroughly fill the infectious site and gelate in situ for bacterial elimination and bone regeneration, which is verified through in vivo evaluation using a clinical-simulating IAOM mouse model. These favorable abilities of CSp@PEGDA precisely meet the multiple therapeutic needs and pave a promising way for implant-associated osteomyelitis treatment.
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Affiliation(s)
- Xin Guan
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Siyuan Wu
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Sixue Ouyang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Shuchen Ren
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Naiqian Cui
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Xiaohu Wu
- Department of Orthopedics, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510515, China
| | - Dayong Xiang
- Division of Orthopaedic Trauma, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Wenting Chen
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Bin Yu
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
- Division of Orthopaedic Trauma, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Peng Zhao
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Bowei Wang
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
- Division of Orthopaedic Trauma, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
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4
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Hoque M, Babu RP, McDonagh C, Jaiswal S, Tiwari BK, Kerry JP, Pathania S. Pectin/sodium alginate-based active film integrated with microcrystalline cellulose and geraniol for food packaging applications. Int J Biol Macromol 2024; 271:132414. [PMID: 38763243 DOI: 10.1016/j.ijbiomac.2024.132414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 05/04/2024] [Accepted: 05/14/2024] [Indexed: 05/21/2024]
Abstract
Biopolymer-based packaging films were prepared from pectin (PEC) and sodium alginate (SA), with the incorporation of 10 % MCC and different concentrations of geraniol (GER at 2.5, 5.0, 7.5, and 10.0 %). Rheological properties suggested that film-forming solutions and film-forming emulsions exhibited a shear-thinning or pseudo-plastic non-Newtonian behaviour. The dried films were crosslinked with 2.0 % CaCl2. The addition of MCC into PEC/SA film enhanced the TS but reduced it with the impregnation of GER without influencing the EAB and toughness of the film. The water solubility of the films significantly reduced with the rise in the GER levels but enhanced the water vapor and oxygen barrier attributes. TGA demonstrated that incorporating MCC reduced the film's thermal degradation (44.92 % to 28.81 %), but GER had an insignificant influence on the thermal stability. FTIR spectra revealed that hydrogen bond formation was positively linked with the GER addition in the film formulation. X-ray diffractograms showed that prepared films were predominantly amorphous. Antimicrobial studies showed a complete reduction of Escherichia coli and Bacillus cereus in 24 h. Overall, the composite film displayed excellent physical and active properties and PEC/SA/MCC/5.0 %GER/CaCl2 film was considered the best formulation for food packaging applications.
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Affiliation(s)
- Monjurul Hoque
- Food Industry Development Department, Teagasc Food Research Centre, Ashtown, 5p, Dublin, Ireland; School of Food and Nutritional Sciences, University College Cork, T12 R229, Ireland
| | - Ramesh P Babu
- AMBER Centre, CRANN Institute, School of Chemistry, Trinity College Dublin, Dublin, Ireland
| | - Ciara McDonagh
- Food Industry Development Department, Teagasc Food Research Centre, Ashtown, 5p, Dublin, Ireland
| | - Swarna Jaiswal
- School of Food Science and Environmental Health, College of Sciences and Health, Technological University Dublin - City Campus, Central Quad, Grangegorman, Dublin D07 ADY7, Ireland; Environmental Sustainability and Health Institute, Technological University Dublin - City Campus, Grangegorman, Dublin D07 H6K8, Ireland
| | - Brijesh K Tiwari
- Food Chemistry and Technology Department, Teagasc Food Research Centre, Ashtown, D15 KN3K Dublin, Ireland
| | - Joseph P Kerry
- School of Food and Nutritional Sciences, University College Cork, T12 R229, Ireland
| | - Shivani Pathania
- Food Industry Development Department, Teagasc Food Research Centre, Ashtown, 5p, Dublin, Ireland.
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5
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Bobu E, Saszet K, Tóth ZR, Páll E, Gyulavári T, Baia L, Magyari K, Baia M. TiO 2-Alginate-Chitosan-Based Composites for Skin Tissue Engineering Applications. Gels 2024; 10:358. [PMID: 38920905 PMCID: PMC11203036 DOI: 10.3390/gels10060358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/13/2024] [Accepted: 05/17/2024] [Indexed: 06/27/2024] Open
Abstract
The UV-B component of sunlight damages the DNA in skin cells, which can lead to skin cancer and premature aging. Therefore, it is necessary to use creams that also contain UV-active substances. Many sunscreens contain titanium dioxide due to its capacity to absorb UV-B wavelengths. In the present study, titan dioxide was introduced in alginate and chitosan-alginate hydrogel composites that are often involved as scaffold compositions in tissue engineering applications. Alginate and chitosan were chosen due to their important role in skin regeneration and skin protection. The composites were cross-linked with calcium ions and investigated using FT-IR, Raman, and UV-Vis spectroscopy. The stability of the obtained samples under solar irradiation for skin protection and regeneration was analyzed. Then, the hydrogel composites were assayed in vitro by immersing them in simulated body fluid and exposing them to solar simulator radiation for 10 min. The samples were found to be stable under solar light, and a thin apatite layer covered the surface of the sample with the two biopolymers and titanium dioxide. The in vitro cell viability assay suggested that the anatase phase in alginate and chitosan-alginate hydrogel composites have a positive impact.
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Affiliation(s)
- Emma Bobu
- Faculty of Physics, Doctoral School of Physics, Babeș-Bolyai University, M. Kogălniceanu 1, RO-400084 Cluj-Napoca, Romania; (E.B.); (K.S.); (Z.-R.T.)
| | - Kata Saszet
- Faculty of Physics, Doctoral School of Physics, Babeș-Bolyai University, M. Kogălniceanu 1, RO-400084 Cluj-Napoca, Romania; (E.B.); (K.S.); (Z.-R.T.)
- Nanostructured Materials and Bio-Nano-Interfaces Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babeș-Bolyai University, Treboniu Laurian 42, RO-400271 Cluj-Napoca, Romania;
| | - Zsejke-Réka Tóth
- Faculty of Physics, Doctoral School of Physics, Babeș-Bolyai University, M. Kogălniceanu 1, RO-400084 Cluj-Napoca, Romania; (E.B.); (K.S.); (Z.-R.T.)
- Nanostructured Materials and Bio-Nano-Interfaces Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babeș-Bolyai University, Treboniu Laurian 42, RO-400271 Cluj-Napoca, Romania;
| | - Emőke Páll
- Faculty of Veterinary Medicine, University of Agricultural Science and Veterinary Medicine, 400372 Cluj-Napoca, Romania;
| | - Tamás Gyulavári
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich B. sqr. 1., 6720 Szeged, Hungary;
| | - Lucian Baia
- Nanostructured Materials and Bio-Nano-Interfaces Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babeș-Bolyai University, Treboniu Laurian 42, RO-400271 Cluj-Napoca, Romania;
- Faculty of Physics, Babeș-Bolyai University, M. Kogălniceanu 1, RO-400084 Cluj-Napoca, Romania
- Institute of Research-Development-Innovation in Applied Natural Sciences, Babeș-Bolyai University, 400294 Cluj-Napoca, Romania
| | - Klara Magyari
- Nanostructured Materials and Bio-Nano-Interfaces Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babeș-Bolyai University, Treboniu Laurian 42, RO-400271 Cluj-Napoca, Romania;
- INSPIRE Research Platform InfoBioNano4Health & Biomedical Imaging, Babeș Bolyai University, Arany Janos 11, 400084 Cluj-Napoca, Romania
| | - Monica Baia
- Faculty of Physics, Babeș-Bolyai University, M. Kogălniceanu 1, RO-400084 Cluj-Napoca, Romania
- Institute of Research-Development-Innovation in Applied Natural Sciences, Babeș-Bolyai University, 400294 Cluj-Napoca, Romania
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6
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Güner Yılmaz Ö, Yılmaz A, Bozoglu S, Karatepe N, Batirel S, Sahin A, Güner FS. Single-Walled (Magnetic) Carbon Nanotubes in a Pectin Matrix in the Design of an Allantoin Delivery System. ACS OMEGA 2024; 9:10069-10079. [PMID: 38463283 PMCID: PMC10918663 DOI: 10.1021/acsomega.3c03619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 11/08/2023] [Accepted: 11/27/2023] [Indexed: 03/12/2024]
Abstract
Single-walled carbon nanotubes (SWCNTs) outperform other materials due to their high conductivity, large specific surface area, and chemical resistance. They have numerous biomedical applications, including the magnetization of the SWCNT (mSWCNT). The drug loading and release properties of see-through pectin hydrogels doped with SWCNTs and mSWCNTs were evaluated in this study. The active molecule in the hydrogel structure is allantoin, and calcium chloride serves as a cross-linker. In addition to mixing, absorption, and swelling techniques, drug loading into carbon nanotubes was also been studied. To characterize the films, differential scanning calorimetry (DSC), thermal gravimetric analysis (TGA), Fourier transform infrared (FTIR) spectroscopy, surface contact angle measurements, and opacity analysis were carried out. Apart from these, a rheological analysis was also carried out to examine the flow properties of the hydrogels. The study was also expanded to include N-(9-fluorenyl methoxycarbonyl)glycine-coated SWCNTs and mSWCNTs as additives to evaluate the efficiency of the drug-loading approach. Although the CNT additive was used at a 1:1000 weight ratio, it had a significant impact on the hydrogel properties. This effect, which was first observed in the thermal properties, was confirmed in rheological analyses by increasing solution viscosity. Additionally, rheological analysis and drug release profiles show that the type of additive causes a change in the matrix structure. According to TGA findings, even though SWCNTs and mSWCNTs were not coated more than 5%, the coating had a significant effect on drug release control. In addition to all findings, cell viability tests revealed that hydrogels with various additives could be used for visual wound monitoring, hyperthermia treatment, and allantoin release in wound treatment applications.
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Affiliation(s)
- Ö.
Zeynep Güner Yılmaz
- Department
of Chemical Engineering, Istanbul Technical
University, Maslak, Istanbul 34469, Turkey
| | - Anıl Yılmaz
- Department
of Chemical Engineering, Istanbul Technical
University, Maslak, Istanbul 34469, Turkey
| | - Serdar Bozoglu
- Energy
Institute, Renewable Energy Division, Istanbul
Technical University, Maslak, Istanbul 34469, Turkey
| | - Nilgun Karatepe
- Energy
Institute, Renewable Energy Division, Istanbul
Technical University, Maslak, Istanbul 34469, Turkey
| | - Saime Batirel
- Department
of Biochemistry, Faculty of Medicine, Marmara
University, Istanbul 34854, Turkey
| | - Ali Sahin
- Department
of Biochemistry, Faculty of Medicine, Marmara
University, Istanbul 34854, Turkey
- Genetic
and Metabolic Diseases Research Center (GEMHAM), Marmara University, Istanbul 34854, Turkey
| | - Fatma Seniha Güner
- Department
of Chemical Engineering, Istanbul Technical
University, Maslak, Istanbul 34469, Turkey
- Sabancı
University Nanotechnology Research and Application Center (SUNUM), Sabancı University, Istanbul 34956, Turkey
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7
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Feng P, He R, Gu Y, Yang F, Pan H, Shuai C. Construction of antibacterial bone implants and their application in bone regeneration. MATERIALS HORIZONS 2024; 11:590-625. [PMID: 38018410 DOI: 10.1039/d3mh01298k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
Bacterial infection represents a prevalent challenge during the bone repair process, often resulting in implant failure. However, the extensive use of antibiotics has limited local antibacterial effects at the infection site and is prone to side effects. In order to address the issue of bacterial infection during the transplantation of bone implants, four types of bone scaffold implants with long-term antimicrobial functionality have been constructed, including direct contact antimicrobial scaffold, dissolution-penetration antimicrobial scaffold, photocatalytic antimicrobial scaffold, and multimodal synergistic antimicrobial scaffold. The direct contact antimicrobial scaffold involves the physical penetration or disruption of bacterial cell membranes by the scaffold surface or hindrance of bacterial adhesion through surface charge, microstructure, and other factors. The dissolution-penetration antimicrobial scaffold releases antimicrobial substances from the scaffold's interior through degradation and other means to achieve local antimicrobial effects. The photocatalytic antimicrobial scaffold utilizes the absorption of light to generate reactive oxygen species (ROS) with enhanced chemical reactivity for antimicrobial activity. ROS can cause damage to bacterial cell membranes, deoxyribonucleic acid (DNA), proteins, and other components. The multimodal synergistic antimicrobial scaffold involves the combined use of multiple antimicrobial methods to achieve synergistic effects and effectively overcome the limitations of individual antimicrobial approaches. Additionally, the biocompatibility issues of the antimicrobial bone scaffold are also discussed, including in vitro cell adhesion, proliferation, and osteogenic differentiation, as well as in vivo bone repair and vascularization. Finally, the challenges and prospects of antimicrobial bone implants are summarized. The development of antimicrobial bone implants can provide effective solutions to bacterial infection issues in bone defect repair in the foreseeable future.
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Affiliation(s)
- Pei Feng
- State Key Laboratory of Precision Manufacturing for Extreme Service Performance, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China.
| | - Ruizhong He
- State Key Laboratory of Precision Manufacturing for Extreme Service Performance, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China.
| | - Yulong Gu
- State Key Laboratory of Precision Manufacturing for Extreme Service Performance, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China.
| | - Feng Yang
- State Key Laboratory of Precision Manufacturing for Extreme Service Performance, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China.
| | - Hao Pan
- Department of Periodontics & Oral Mucosal Section, Xiangya Stomatological Hospital & Xiangya School of Stomatology, Central South University, Changsha 410013, China.
| | - Cijun Shuai
- State Key Laboratory of Precision Manufacturing for Extreme Service Performance, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China.
- Institute of Additive Manufacturing, Jiangxi University of Science and Technology, Nanchang 330013, China
- College of Mechanical Engineering, Xinjiang University, Urumqi 830017, China
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8
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Tan J, Deng H, Lu F, Chen W, Su X, Wang H. Antibacterial Nanocellulose-TiO 2/Polyester Fabric for the Recyclable Photocatalytic Degradation of Dyes. Polymers (Basel) 2023; 15:4376. [PMID: 38006100 PMCID: PMC10675286 DOI: 10.3390/polym15224376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 10/31/2023] [Accepted: 11/01/2023] [Indexed: 11/26/2023] Open
Abstract
In this paper, we report an antibacterial, recyclable nanocellulose-titanium dioxide/polyester nonwoven fabric (NC-TiO2/PET) composite for the highly efficient photocatalytic degradation of dyes. The NC-TiO2 was loaded onto the surface of flexible PET nonwoven fabric through a simple swelling and dipping method. The NC-TiO2 in the particle size range of ~10 nm were uniformly attached to the surface of the PET fibers. The NC-TiO2/PET composite has the ability to achieve the stable photocatalytic degradation of dyes and presents antibacterial properties. The degradation rates to methylene blue (MB) and acid red (AR) of the NC-TiO2/PET composite reached 90.02% and 91.14%, respectively, and the inhibition rate of Escherichia coli was >95%. After several rounds of cyclic testing, the photocatalytic performance, antibacterial performance, and mechanical stability of the NC-TiO2/PET composite remained robust.
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Affiliation(s)
- Jiacheng Tan
- Key Laboratory of Functional Fibers and Intelligent Textiles, Yuanpei College, Shaoxing University, Shaoxing 312000, China; (J.T.); (H.D.)
| | - Hangjun Deng
- Key Laboratory of Functional Fibers and Intelligent Textiles, Yuanpei College, Shaoxing University, Shaoxing 312000, China; (J.T.); (H.D.)
| | - Fangfang Lu
- Zhoushan Institute of Calibration and Testing for Quality and Technology Supervision, Zhoushan 316000, China;
| | - Wei Chen
- College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China;
| | - Xiuping Su
- Key Laboratory of Functional Fibers and Intelligent Textiles, Yuanpei College, Shaoxing University, Shaoxing 312000, China; (J.T.); (H.D.)
| | - Hairong Wang
- Zhoushan Institute of Calibration and Testing for Quality and Technology Supervision, Zhoushan 316000, China;
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9
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Ruan H, Aulova A, Ghai V, Pandit S, Lovmar M, Mijakovic I, Kádár R. Polysaccharide-based antibacterial coating technologies. Acta Biomater 2023; 168:42-77. [PMID: 37481193 DOI: 10.1016/j.actbio.2023.07.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 06/16/2023] [Accepted: 07/17/2023] [Indexed: 07/24/2023]
Abstract
To tackle antimicrobial resistance, a global threat identified by the United Nations, is a common cause of healthcare-associated infections (HAI) and is responsible for significant costs on healthcare systems, a substantial amount of research has been devoted to developing polysaccharide-based strategies that prevent bacterial attachment and biofilm formation on surfaces. Polysaccharides are essential building blocks for life and an abundant renewable resource that have attracted much attention due to their intrinsic remarkable biological potential antibacterial activities. If converted into efficient antibacterial coatings that could be applied to a broad range of surfaces and applications, polysaccharide-based coatings could have a significant potential global impact. However, the ultimate success of polysaccharide-based antibacterial materials will be determined by their potential for use in manufacturing processes that are scalable, versatile, and affordable. Therefore, in this review we focus on recent advances in polysaccharide-based antibacterial coatings from the perspective of fabrication methods. We first provide an overview of strategies for designing polysaccharide-based antimicrobial formulations and methods to assess the antibacterial properties of coatings. Recent advances on manufacturing polysaccharide-based coatings using some of the most common polysaccharides and fabrication methods are then detailed, followed by a critical comparative overview of associated challenges and opportunities for future developments. STATEMENT OF SIGNIFICANCE: Our review presents a timely perspective by being the first review in the field to focus on advances on polysaccharide-based antibacterial coatings from the perspective of fabrication methods along with an overview of strategies for designing polysaccharide-based antimicrobial formulations, methods to assess the antibacterial properties of coatings as well as a critical comparative overview of associated challenges and opportunities for future developments. Meanwhile this work is specifically targeted at an audience focused on featuring critical information and guidelines for developing polysaccharide-based coatings. Including such a complementary work in the journal could lead to further developments on polysaccharide antibacterial applications.
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Affiliation(s)
- Hengzhi Ruan
- Department of Industrial and Materials Science, Chalmers University of Technology, 412 96 Göteborg, Sweden
| | - Alexandra Aulova
- Department of Industrial and Materials Science, Chalmers University of Technology, 412 96 Göteborg, Sweden
| | - Viney Ghai
- Department of Industrial and Materials Science, Chalmers University of Technology, 412 96 Göteborg, Sweden
| | - Santosh Pandit
- Department of Biology and Biological Engineering, Chalmers University of Technology, 412 96 Göteborg, Sweden
| | - Martin Lovmar
- Department of Biology and Biological Engineering, Chalmers University of Technology, 412 96 Göteborg, Sweden; Wellspect Healthcare AB, 431 21 Mölndal, Sweden
| | - Ivan Mijakovic
- Department of Biology and Biological Engineering, Chalmers University of Technology, 412 96 Göteborg, Sweden; The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800 Kongens Lyngby, Denmark.
| | - Roland Kádár
- Department of Industrial and Materials Science, Chalmers University of Technology, 412 96 Göteborg, Sweden; Wallenberg Wood Science Centre (WWSC), Chalmers University of Technology, 412 96 Göteborg, Sweden.
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Janik W, Nowotarski M, Ledniowska K, Shyntum DY, Krukiewicz K, Turczyn R, Sabura E, Furgoł S, Kudła S, Dudek G. Modulation of physicochemical properties and antimicrobial activity of sodium alginate films through the use of chestnut extract and plasticizers. Sci Rep 2023; 13:11530. [PMID: 37460643 DOI: 10.1038/s41598-023-38794-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 07/14/2023] [Indexed: 07/20/2023] Open
Abstract
Due to the growing demand for robust and environmentally friendly antimicrobial packaging materials, biopolymers have recently become extensively investigated. Although biodegradable biopolymers usually lack mechanical properties, which makes it inevitable to blend them with plasticizers. The purpose of this study was to investigate plasticization efficiency of bio-based plasticizers introduced into sodium alginate compositions containing chestnut extract and their effect on selected film properties, including primarily mechanical and antibacterial properties. The films were prepared by the casting method and sodium alginate was cross-linked with calcium chloride. Six different plasticizers, including three commercially available ones (glycerol, epoxidized soybean oil and palm oil) and three synthesized plasticizers that are mixtures of bio-based plasticizers, were used to compare their influence on the film properties. Interactions between the polymer matrix and the plasticizers were investigated using Fourier transform infrared spectroscopy. The morphological characteristics of the films were characterized by scanning electron microscopy. Thermal properties, tensile strength, elongation at break, hydrophilic, and barrier properties of the obtained films were also determined. To confirm the obtaining of active films through the use of chestnut extract and to study the effect of the proposed plasticizers on the antibacterial activity of the extract, the obtained films were tested against bacteria cultures. The final results showed that all of the obtained films exhibit a hydrophilic character and high barrier effect to oxygen, carbon dioxide and water vapor. In addition, sodium alginate films prepared with chestnut extract and the plasticizer proposed by us, showed better mechanical and antimicrobial properties than the films obtained with chestnut extract and the commercially available plasticizers.
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Affiliation(s)
- Weronika Janik
- Łukasiewicz Research Network-Institute of Heavy Organic Synthesis "Blachownia", 47-225, Kędzierzyn-Koźle, Poland.
- Department of Physical Chemistry and Technology of Polymers, PhD School, Silesian University of Technology, 44-100, Gliwice, Poland.
| | - Michał Nowotarski
- Department of Physical Chemistry and Technology of Polymers, Faculty of Chemistry, Silesian University of Technology, 44-100, Gliwice, Poland
| | - Kerstin Ledniowska
- Łukasiewicz Research Network-Institute of Heavy Organic Synthesis "Blachownia", 47-225, Kędzierzyn-Koźle, Poland
- Department of Physical Chemistry and Technology of Polymers, PhD School, Silesian University of Technology, 44-100, Gliwice, Poland
| | | | - Katarzyna Krukiewicz
- Department of Physical Chemistry and Technology of Polymers, Faculty of Chemistry, Silesian University of Technology, 44-100, Gliwice, Poland
- Centre for Organic and Nanohybrid Electronics, Silesian University of Technology, 44-100, Gliwice, Poland
| | - Roman Turczyn
- Department of Physical Chemistry and Technology of Polymers, Faculty of Chemistry, Silesian University of Technology, 44-100, Gliwice, Poland
- Centre for Organic and Nanohybrid Electronics, Silesian University of Technology, 44-100, Gliwice, Poland
| | - Ewa Sabura
- Łukasiewicz Research Network-Institute of Heavy Organic Synthesis "Blachownia", 47-225, Kędzierzyn-Koźle, Poland
| | - Simona Furgoł
- Łukasiewicz Research Network-Institute of Heavy Organic Synthesis "Blachownia", 47-225, Kędzierzyn-Koźle, Poland
| | - Stanisław Kudła
- Łukasiewicz Research Network-Institute of Heavy Organic Synthesis "Blachownia", 47-225, Kędzierzyn-Koźle, Poland
| | - Gabriela Dudek
- Department of Physical Chemistry and Technology of Polymers, Faculty of Chemistry, Silesian University of Technology, 44-100, Gliwice, Poland
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11
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Sun S, Bao D, Zhou Y, Cheng C, Zhang S, Zhao M, Guo J. Sodium alginate/chitosan-coated TiO 2NPs hybrid fiber with photocatalytic self-cleaning property, UV resistance and enhanced tensile strength. Int J Biol Macromol 2023:124966. [PMID: 37244334 DOI: 10.1016/j.ijbiomac.2023.124966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 05/12/2023] [Accepted: 05/17/2023] [Indexed: 05/29/2023]
Abstract
SA/CS-coated TiO2NPs hybrid fibers with photocatalytic self-cleaning properties, UV resistance and enhanced tensile strength were successfully prepared by adding CS-coated TiO2NPs to SA matrix. The FTIR and TEM results demonstrate the successful preparation of CS-coated TiO2NPs core-shell structured composite particles. SEM and Tyndall effect results showed that the core-shell particles were uniformly dispersed in the SA matrix. When the content of Core-shell particles increased from 0.1 to 0.3 wt%, the tensile strength of SA/CS-coated TiO2NPs hybrid fibers increased from 26.89 to 64.45 % compared with SA/TiO2NPs hybrid fibers. The SA/CS-coated TiO2NPs hybrid fiber (0.3 wt%) exhibits excellent photocatalytic degradation performance, achieving a 90 % degradation rate for the RhB solution. And the fibers also exhibit outstanding photocatalytic degradation performance towards various dyes and stains commonly encountered in daily life, including methyl orange, malachite green, Congo red, coffee and mulberry juice. The UV transmittance of the SA/CS-coated TiO2NPs hybrid fibers decreased significantly from 90 % to 75 % with the increase in core-shell particle addition, and correspondingly, the UV absorption capacity increased. The SA/CS-coated TiO2NPs hybrid fibers prepared lay the groundwork for potential applications in various fields, including textiles, automotive engineering, electronics and medicine.
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Affiliation(s)
- Shengnan Sun
- School of Textile and Materials Engineering, Dalian Polytechnic University, #1 Qinggongyuan, Ganjingzi, Dalian 116034, Liaoning, PR China
| | - Da Bao
- School of Textile and Materials Engineering, Dalian Polytechnic University, #1 Qinggongyuan, Ganjingzi, Dalian 116034, Liaoning, PR China
| | - Yongchun Zhou
- School of Textile and Materials Engineering, Dalian Polytechnic University, #1 Qinggongyuan, Ganjingzi, Dalian 116034, Liaoning, PR China
| | - Chen Cheng
- School of Textile and Materials Engineering, Dalian Polytechnic University, #1 Qinggongyuan, Ganjingzi, Dalian 116034, Liaoning, PR China
| | - Sen Zhang
- School of Textile and Materials Engineering, Dalian Polytechnic University, #1 Qinggongyuan, Ganjingzi, Dalian 116034, Liaoning, PR China; State Key Laboratory of Bio-Fibers and Eco-textiles, Qingdao University, Qingdao 266071, PR China.
| | - Miao Zhao
- School of Textile and Materials Engineering, Dalian Polytechnic University, #1 Qinggongyuan, Ganjingzi, Dalian 116034, Liaoning, PR China
| | - Jing Guo
- School of Textile and Materials Engineering, Dalian Polytechnic University, #1 Qinggongyuan, Ganjingzi, Dalian 116034, Liaoning, PR China.
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12
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Akhila K, Ramakanth D, Rao LL, Gaikwad KK. UV-blocking biodegradable film based on flaxseed mucilage/pectin impregnated with titanium dioxide and calcium chloride for food packaging applications. Int J Biol Macromol 2023; 239:124335. [PMID: 37028623 DOI: 10.1016/j.ijbiomac.2023.124335] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 03/31/2023] [Accepted: 04/01/2023] [Indexed: 04/08/2023]
Abstract
A UV blocking and potentially biodegradable composite films are fabricated from flax seed mucilage and pectin with different concentrations of titanium dioxide (TiO2) and crosslinked with calcium chloride (CaCl2). This study aimed to evaluate the physical, surface, and optical properties including color, potential biodegradability, and absorption kinetics of the developed film. From the observations made, addition of 5 wt% TiO2 enhanced UV barrier property with a total color change (ΔE) of 23.441 ± 0.54 and increased its crystallinity to 54.1 % from 43.6 %. Crosslinking agent and TiO2 resulted in a prolonged period of biodegradation of >21 days when compared to neat film. Also, swelling index of crosslinked film was reduced by 3 times of non-crosslinked films. Surface of the developed films has no cracks and agglomerates as observed from scanning electron microscope. Moisture absorption kinetic study reveals that all the films have best-fit data following a pseudo-second-order kinetic model with a correlation coefficient ≥0.99 and the rate was controlled by inter-particle diffusion. The film with 1 wt% TiO2 and 5 wt% CaCl2 showed the lowest rate constants (k1) of 0.27 and (k2) of 0.029. The results suggest that this film can be potentially used in food packaging as a UV-blocking layer with potential biodegradability and good moisture resistance as compared to pure flax seed mucilage or pectin films.
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Hajareh Haghighi F, Mercurio M, Cerra S, Salamone TA, Bianymotlagh R, Palocci C, Romano Spica V, Fratoddi I. Surface modification of TiO 2 nanoparticles with organic molecules and their biological applications. J Mater Chem B 2023; 11:2334-2366. [PMID: 36847384 DOI: 10.1039/d2tb02576k] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
In recent years, titanium(IV) dioxide nanoparticles (TiO2NPs) have shown promising potential in various biological applications such as antimicrobials, drug delivery, photodynamic therapy, biosensors, and tissue engineering. For employing TiO2NPs in these fields, their nanosurface must be coated or conjugated with organic and/or inorganic agents. This modification can improve their stability, photochemical properties, biocompatibility, and even surface area for further conjugation with other molecules such as drugs, targeting molecules, polymers, etc. This review describes the organic-based modification of TiO2NPs and their potential applications in the mentioned biological fields. In the first part of this review, around 75 recent publications (2017-2022) are mentioned on the common TiO2NP modifiers including organosilanes, polymers, small molecules, and hydrogels, which improve the photochemical features of TiO2NPs. In the second part of this review, we presented 149 recent papers (2020-2022) about the use of modified TiO2NPs in biological applications, in which specific bioactive modifiers are introduced in this part with their advantages. In this review, the following information is presented: (1) the common organic modifiers for TiO2NPs, (2) biologically important modifiers and their benefits, and (3) recent publications on biological studies on the modified TiO2NPs with their achievements. This review shows the paramount significance of the organic-based modification of TiO2NPs to enhance their biological effectiveness, paving the way toward the development of advanced TiO2-based nanomaterials in nanomedicine.
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Affiliation(s)
- Farid Hajareh Haghighi
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy.
| | - Martina Mercurio
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy.
| | - Sara Cerra
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy.
| | | | - Roya Bianymotlagh
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy.
| | - Cleofe Palocci
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy. .,Research Center for Applied Sciences to the Safeguard of Environment and Cultural Heritage (CIABC), Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Vincenzo Romano Spica
- Department of Movement, Health and Human Sciences, University of Rome Foro Italico, Piazza Lauro De Bosis, 15, 00135 Rome, Italy
| | - Ilaria Fratoddi
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy.
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14
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Liu J, Dai Q, Xiao R, Zhou T, Han J, Fu B. Immobilization of ZnIn 2S 4 on sodium alginate foam for efficient hexavalent chromium removal. Int J Biol Macromol 2023; 236:123848. [PMID: 36863674 DOI: 10.1016/j.ijbiomac.2023.123848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 02/13/2023] [Accepted: 02/23/2023] [Indexed: 03/04/2023]
Abstract
Photocatalytic technology has been extensively studied in the removal of toxic Cr(VI) from wastewater. However, common powdery photocatalysts suffer from poor recyclability and secondly pollution. Herein, the zinc indium sulfide (ZnIn2S4) particles were integrated onto the sodium alginate foam(SA) matrix through a facile way to obtain foam-shape catalyst. Diverse characterization techniques including X-ray diffraction(XRD), Fourier transform infrared(FT-IR), scanning electron microscope(SEM) and X-ray photoelectron spectroscopy(XPS) were employed to reveal the composite compositions, organic-inorganic interface interactions, mechanical property, and pore morphology of the foams. Results demonstrated that the ZnIn2S4 crystals wrapped on SA skeleton tightly and constructed a flower-like structure. As-prepared hybrid foam with lamellar structure showed great potential in Cr(VI) treatment due to the presence of macropores and highly available active sites. A maximum Cr(VI) photoreduction efficiency of 93 % were observed over the optimal sample of ZS-1 (with a ZnIn2S4:SA mass ratio of 1:1) under visible irradiation. When tested with mixed pollutants (Cr(VI)/dyes), the ZS-1 sample displayed an enhanced removal efficiency of 98 % for Cr(VI) and 100 % for Rhodamine B(RhB). Moreover, the composite maintained prominent photocatalytic performance and a relatively integral 3D structure scaffold after continuous six runs, revealing its superior reusability and durability.
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Affiliation(s)
- Ju Liu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Qihang Dai
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Ruixue Xiao
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Tiantian Zhou
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Jianlin Han
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China.
| | - Bo Fu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China.
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15
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Zhang J, Zhang J, Huang X, Shi J, Liu L, Song W, Zhai X, Xiao J, Hashim SBH, Li Z, Zou X, Povey M. A visual bi-layer sensor based on Agar/TiO 2/butterfly bean flower anthocyanin/κ-carrageenan with photostability for monitoring Penaeus chinensis freshness. Int J Biol Macromol 2023; 235:123706. [PMID: 36801306 DOI: 10.1016/j.ijbiomac.2023.123706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 02/06/2023] [Accepted: 02/11/2023] [Indexed: 02/18/2023]
Abstract
Visual indicator bi-layer films were manufactured incorporating κ-carrageenan, butterfly pea flower anthocyanin, varying Nano‑titanium dioxide (TiO2) content and agar for Penaeus chinensis (Chinese white shrimp) freshness detection. The κ-carrageenan-anthocyanin (CA) layer served as indicator, while the TiO2-agar (TA) layer functioned as the protective layer to improve the photostability of film. The bi-layer structure was characterized by scanning electron microscopy (SEM). The TA2-CA film had the best tensile strength with a value of 17.8 MPa and the lowest water vapor permeability (WVP) value of bi-layer films was 2.98 × 10-7 g.m-1.h-1.pa-1. The bi-layer film protected anthocyanin against exudation when immersed in aqueous solution of varying pH. The TiO2 particles filled the pores of the protective layer, increasing the opacity from 1.61 up to 4.49 significantly improving the photostability with a consequent slight color change under illumination of UV/visible light. Under UV irradiation, the TA2-CA film had no significant color change with a ΔE value of 4.23. Finally, the TA2-CA films showed an obvious color change from blue to yellow green in the early stages of Penaeus chinensis putrefaction (≤48 h) then the color change and Penaeus chinensis freshness were well correlated (R2 = 0.8739).
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Affiliation(s)
- Junjun Zhang
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Jianing Zhang
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Xiaowei Huang
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Jiyong Shi
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
| | - Li Liu
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Wenjun Song
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Xiaodong Zhai
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Jianbo Xiao
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Sulafa B H Hashim
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Zhihua Li
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Xiaobo Zou
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
| | - Megan Povey
- School of Food Science and Nutrition, the University of Leeds, Leeds LS2 9JT, United Kingdom.
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Wang T, Yang Z, Zhang C, Zhai X, Zhang X, Huang X, Li Z, Zhang X, Zou X, Shi J. Chitosan-cinnamon essential oil/sodium alginate-TiO2 bilayer films with enhanced bioactive retention property: Application for mango preservation. Int J Biol Macromol 2022; 222:2843-2854. [DOI: 10.1016/j.ijbiomac.2022.10.063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 10/05/2022] [Accepted: 10/07/2022] [Indexed: 11/05/2022]
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17
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Preparation of hydrophobic composite membranes based on carboxymethyl cellulose and modified pectin: Effects of grafting a long-chain saturated fatty acid. Int J Biol Macromol 2022; 222:2318-2326. [DOI: 10.1016/j.ijbiomac.2022.10.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 09/26/2022] [Accepted: 10/04/2022] [Indexed: 11/05/2022]
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18
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Horvat G, Žvab K, Knez Ž, Novak Z. Simple, One-Pot Method for Preparing Transparent Ethyl Cellulose Films with Good Mechanical Properties. Polymers (Basel) 2022; 14:polym14122399. [PMID: 35745974 PMCID: PMC9228318 DOI: 10.3390/polym14122399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/07/2022] [Accepted: 06/11/2022] [Indexed: 11/16/2022] Open
Abstract
In this research, ethyl cellulose films were prepared by a simple, easy, controlled one-pot method using either ethanol or ethyl lactate as solvents, the films being formed at 6 °C. Titanium dioxide nanoparticles were incorporated to improve the oxygen transmission and water vapour transmission rates of the obtained films. This method used no plasticizers, and flexible materials with good mechanical properties were obtained. The resulting solvent-free and transparent ethyl cellulose films exhibited good mechanical properties and unique free-shapable properties. The obtained materials had similar properties to those reported in the literature, where plasticizers were incorporated into ethyl cellulose films with an elastic modulus of 528 MPa. Contact angles showed the hydrophobic nature of all the prepared materials, with contact angles between 80 and 108°. Micrographs showed the smooth surfaces of the prepared samples and porous intersections with honeycomb-like structures. The oxygen and water vapor transmission rates were the lowest for the ethyl cellulose films prepared in ethyl lactate, these being 615 cm3·m−2·day−1 and 7.8 gm−2·day−1, respectively, showing that the films have promise for food packaging applications.
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Affiliation(s)
- Gabrijela Horvat
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova ul.17, 2000 Maribor, Slovenia; (G.H.); (K.Ž.); (Ž.K.)
| | - Klara Žvab
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova ul.17, 2000 Maribor, Slovenia; (G.H.); (K.Ž.); (Ž.K.)
| | - Željko Knez
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova ul.17, 2000 Maribor, Slovenia; (G.H.); (K.Ž.); (Ž.K.)
- Faculty of Medicine, University of Maribor, Taborska Ulica 8, 2000 Maribor, Slovenia
| | - Zoran Novak
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova ul.17, 2000 Maribor, Slovenia; (G.H.); (K.Ž.); (Ž.K.)
- Correspondence:
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Biopolymer-Based Films from Sodium Alginate and Citrus Pectin Reinforced with SiO2. MATERIALS 2022; 15:ma15113881. [PMID: 35683178 PMCID: PMC9182168 DOI: 10.3390/ma15113881] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 05/24/2022] [Accepted: 05/25/2022] [Indexed: 02/01/2023]
Abstract
Blend films based on sodium alginate (SA) and citrus pectin (P) reinforced with different concentrations of SiO2 (0–10% w/w) were developed in this study. From the morphological (SEM) and structural (FT-IR) evaluation, it was verified that the incorporation of the reinforcing agent did not drastically modify the microstructure of the films, nor did new chemical bonds form. However, the XRD results suggested a slight reduction in the crystallinities of the blends by the incorporation of SiO2. Among the formulations prepared, the addition of a 5% reinforcing agent was responsible for the simultaneous improvement of mechanical and barrier properties. Comparing the control sample (SA/P) with the SA/P/5.0%SiO2 film, the tensile strength increased from 27.7 ± 3.7 to 40.6 ± 4.5 MPa, and the water-vapor transmission rate decreased from 319.8 ± 38.7 to 288.9 ± 23.5 g m−2 day−1. Therefore, SiO2, as a reinforcing agent in SA/P blends, represents a simple and effective strategy for improving the properties of biopolymer-based films in applications, such as packaging.
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